A very good dissertation about what kind of writable optical media is the best.

His suggestion about Taiyo Yuden DVD+R I'm sure going to follow.

Recently I've had lots of issues with Verbatim DVD-R (MCC 03RG20), probably because of a slightly old firmware on my burner. And as he explains in the article this seems to be because of the lack of information on new media on how to burn DVD-Rs.